1 files changed, 40 insertions, 27 deletions

diff --git a/indra/llui/lldockcontrol.cpp b/indra/llui/lldockcontrol.cpp
index d738b10130..b1c27126d9 100644
--- a/indra/llui/lldockcontrol.cpp
+++ b/indra/llui/lldockcontrol.cpp
@@ -2,31 +2,25 @@
  * @file lldockcontrol.cpp
  * @brief Creates a panel of a specific kind for a toast
  *
- * $LicenseInfo:firstyear=2000&license=viewergpl$
- * 
- * Copyright (c) 2000-2009, Linden Research, Inc.
- * 
+ * $LicenseInfo:firstyear=2000&license=viewerlgpl$
  * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab.  Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
  * 
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
  * 
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  * 
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  */
 
@@ -166,8 +160,10 @@ bool LLDockControl::isDockVisible()
 			case TOP:
 			{
 				// check is dock inside parent rect
+				// assume that parent for all dockable flaoters
+				// is the root view
 				LLRect dockParentRect =
-						mDockWidget->getParent()->calcScreenRect();
+						mDockWidget->getRootView()->calcScreenRect();
 				if (dockRect.mRight <= dockParentRect.mLeft
 						|| dockRect.mLeft >= dockParentRect.mRight)
 				{
@@ -226,10 +222,15 @@ void LLDockControl::moveDockable()
 	case TOP:
 		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
 		y = dockRect.mTop + dockableRect.getHeight();
-		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		// unique docking used with dock tongue, so add tongue height to the Y coordinate
 		if (use_tongue)
 		{
 			y += mDockTongue->getHeight();
+
+			if ( y > rootRect.mTop)
+			{
+				y = rootRect.mTop;
+			}
 		}
 
 		// check is dockable inside root view rect
@@ -263,7 +264,7 @@ void LLDockControl::moveDockable()
 	case BOTTOM:
 		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
 		y = dockRect.mBottom;
-		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		// unique docking used with dock tongue, so add tongue height to the Y coordinate
 		if (use_tongue)
 		{
 			y -= mDockTongue->getHeight();
@@ -298,9 +299,21 @@ void LLDockControl::moveDockable()
 		break;
 	}
 
-	// move dockable
-	dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(),
-			dockableRect.getHeight());
+	S32 max_available_height = rootRect.getHeight() - (rootRect.mBottom -  mDockTongueY) - mDockTongue->getHeight();
+
+	// A floater should be shrunk so it doesn't cover a part of its docking tongue and
+	// there is a space between a dockable floater and a control to which it is docked.
+	if (use_tongue && dockableRect.getHeight() >= max_available_height)
+	{
+		dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(), max_available_height);
+		mDockableFloater->reshape(dockableRect.getWidth(), dockableRect.getHeight());
+	}
+	else
+	{
+		// move dockable
+		dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(),
+				dockableRect.getHeight());
+	}
 	LLRect localDocableParentRect;
 	mDockableFloater->getParent()->screenRectToLocal(dockableRect,
 			&localDocableParentRect);